Adj. | 1. | isotonic - (used of solutions) having the same or equal osmotic pressure hypertonic - (of a solution) having a higher osmotic pressure than a comparison solution hypotonic - (of a solution) having a lower osmotic pressure than a comparison solution |
2. | isotonic - relating to or characterized by the equal intervals of a musical scale; "isotonic tuning" | |
3. | isotonic - of or involving muscular contraction in which tension is constant while length changes physiology - the branch of the biological sciences dealing with the functioning of organisms isometric - of or involving muscular contraction in which tension increases while length remains constant | |
4. | isotonic - of two or more muscles; having equal tension physiology - the branch of the biological sciences dealing with the functioning of organisms tense - in or of a state of physical or nervous tension |